RAID 5 vs RAID 0

[rpacker]

I am about to reformat my Proavio Studio8 RAID array, which is connected to a Highpoint 2314 PCIe controller on a Mac Pro 8-core running OS X 10.6, ATI Radeon 5770 graphics card. Right now it is in the RAID 5 format.

Would performance improve significantly if I reformat in RAID 0? I use files of all different lengths, resolution, size, video, graphics, etc, athough I am though using the DXV compression for most video, particularly the 720p HD clips. And I don't mind having to backup!

Thanks, Randall

[HerrNieDa]

i think raid0 makes more sense if you backup your data anyway.
raid5 also should perform good, only write performance is much slower than in raid0, read performance should be good enough, not reasonably slower than raid0 i think.

maybe check some benchmark results in the inet for comparing read spead and also latency!
latency gets little better with raid0 compared to a single harddrive, don't know the case in raid5
also the controller which is used makes also big differences in performance!

anyways read performance should be good enough with 3 or more harddrives to run the resolutions which perform on your graphic card.

[rpacker]

Thanks for the reply! Since I am planning to backup anyway (I don't even trust redundant RAID 5), you are right, RAID 0 makes more sense. Also the technician at Proavio suggested going with RAID 0 for performance work.